AC Lim's answer to Khairin's Primary 6 Maths Measurement Singapore question.
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Start form plank Q, we know each equal part = 60 (360/6=60)
From here we know plank R each part= 120cm (equal to 2 parts of PlankQ)
Therefore, plank P each part = 80cm
Plank P 3u = plank R 2u( 120x2=240)
Total Length for plank P = 5x80 = 400cm
From here we know plank R each part= 120cm (equal to 2 parts of PlankQ)
Therefore, plank P each part = 80cm
Plank P 3u = plank R 2u( 120x2=240)
Total Length for plank P = 5x80 = 400cm
Date Posted:
5 years ago
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